Mapc treatmentof brain injuries and diseases
a brain injury and disease technology, applied in the field of brain injury and disease treatment, can solve the problems of focal hypoxia, stroke, cortical infarct, brain injury, brain diseases,
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example 1
schemic Injury with MAPCs in Rats and treatment with MAPCS and Immunosuppression
[0245]Seven day old Sprague Dawley (SD) rat pups (n=7 per test group) were subjected to HI injury by the method of unilateral carotid ligation followed fey 8% hypoxia, as described in Rice et al, Ann Neurol. 9: 131-141 (1981), which is herein incorporated by reference in its entirety particularly in regard to this method. Seven days after the injury, the animals underwent stereotaxic transplantation into the hippocampal region with cryopreserved MAPCs (thawed just prior to transplantation) derived from either SD rats (syngeneic, GFP-labeled, 200,000 cells per animal) or Fisher rats (allogeneic, β-gal-labeled, 200,000 cells per animal). All animals were treated with daily immunosuppression (CSA, 1 mg / kg, i.p.) throughout the survival period. On days 7 and 14 post-transplantation, the Elevated Body Swing Test (EBST) and Rotarod test were performed to reveal general and coordinated motor and neurological fu...
example 2b
al Analysis of MAPC Engraftment on Day 14 after MAPC Injection in Brains of HI Rats
[0247]Animals were treated as described in Example 1. Grafted MAPCs were detected in the brains of the HI-injured animals after sacrifice on Day 14 post transplantation by histological examination. GFP-positive syngeneic grafts were detected mostly in the original hippocampal CA3 transplant site and adjacent CA2 region, which co-labeled with DAPI. Allogeneic grafts, detected by anti-β-gal staining and co-labeling with DAPI, displayed a similar pattern of graft survival in HI injured brains. Graft survival was 0.96% at 14 days (ANOVA F value is 24.27, df=2, 19 and p<0.0001; Fisher posthoc is p<0.0001), The results show that both allogeneic and syngeneic MAPCs engraft at the injection site and persist to at least two weeks after direct intracerebral injection in animals In the rat HI injury model.
example 3
MAPCs Protect Endogenous Neurons
[0248]Animals were treated as described in Example 1, Histological analysis was carried out much as described in Example 2B, but alternate brain sections were Nissl stained to determine the level of endogenous neuronal viability. There was a significant decrease in endogenous neuronal death in animals that were injected with syngeneic or allogeneic MAPCs, compared to animals injected with control vehicle. The results are depicted graphically in FIG. 3. The results show that MAPC administration protects endogenous neurons from hypoxic ischemic injury, resulting in increased neuronal viability.
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